Last week, Arizona Gov. Jan Brewer signed a statewide law forcing local police officers to question and potentially detain anyone they "reasonably suspect" to be an undocumented immigrant. If you believe our local law enforcement agencies, who will be required to implement the mandates of this law, it will lead to mistrust between police and the people they have sworn to protect. The law violates due process, civil rights, and federal sovereignty over immigration policy. While I believe the courts will quickly overturn it, I am concerned that the damage to my home state's credibility has already been done.